2 Replies Latest reply on Apr 29, 2015 7:42 PM by @gmail.com

    I need more DMA Buffer in FX3s

    @gmail.com

       Hello.

         

      I design a USB system using FX3s chip. I need 32KB DMA buffer for USB control, and need more 32KB DMA buffer for SD card Control. but there are no allocated both memory. CyU3PDmaChannelCreate function returned a Error with number 16 meaned CY_U3P_ERROR_MEMORY_ERROR.  

         

      I think system has limit memory 32KB for DMA buffer.

         

      according to default application memory map in cyfxtx.c, buffer area size is 224KB. Can I use whole buffer region for DMA buffer??

         

      Thank you

         

      Regards